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MiniDexed
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Revert "Use the CSoundBaseDevice::Write() method from a secondary CPU core"

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This reverts commit f784824254.
pull/42/head
probonopd 3 years ago
parent 2c98815c22
commit b6274b1374
4 changed files with 214 additions and 119 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 3
      build.sh
  2. 23
      src/kernel.cpp
  3. 228
      src/minidexed.cpp
  4. 61
      src/minidexed.h

3
build.sh
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@ -18,9 +18,6 @@ fi
cd circle-stdlib/
make mrproper || true
./configure -r ${RPI} --prefix "${TOOLCHAIN_PREFIX}"
if [ "${RPI}" -gt "1" ]; then
echo "DEFINE += -DARM_ALLOW_MULTI_CORE" >> libs/circle/Config.mk
fi
echo "DEFINE += -DUSE_PWM_AUDIO_ON_ZERO" >> libs/circle/Config.mk
echo "DEFINE += -DSAVE_VFP_REGS_ON_IRQ" >> libs/circle/Config.mk
echo "DEFINE += -DREALTIME" >> libs/circle/Config.mk

23
src/kernel.cpp
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@ -18,6 +18,7 @@
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
#include "kernel.h"
#include <string.h>
#include <circle/logger.h>
#include <circle/synchronize.h>
#include <assert.h>
@ -64,7 +65,27 @@ bool CKernel::Initialize (void)
m_Config.Load ();
m_pDexed = new CMiniDexed (&m_Config, &mInterrupt, &m_GPIOManager, &m_I2CMaster);
// select the sound device
const char *pSoundDevice = m_Config.GetSoundDevice ();
if (strcmp (pSoundDevice, "i2s") == 0)
{
LOGNOTE ("I2S mode");
m_pDexed = new CMiniDexedI2S (&m_Config, &mInterrupt, &m_GPIOManager, &m_I2CMaster);
}
else if (strcmp (pSoundDevice, "hdmi") == 0)
{
LOGNOTE ("HDMI mode");
m_pDexed = new CMiniDexedHDMI (&m_Config, &mInterrupt, &m_GPIOManager);
}
else
{
LOGNOTE ("PWM mode");
m_pDexed = new CMiniDexedPWM (&m_Config, &mInterrupt, &m_GPIOManager);
}
assert (m_pDexed);
if (!m_pDexed->Initialize ())

228
src/minidexed.cpp
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@ -19,28 +19,18 @@
//
#include "minidexed.h"
#include <circle/logger.h>
#include <circle/memory.h>
#include <circle/pwmsoundbasedevice.h>
#include <circle/i2ssoundbasedevice.h>
#include <circle/hdmisoundbasedevice.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>
LOGMODULE ("minidexed");
CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager, CI2CMaster *pI2CMaster)
CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt, CGPIOManager *pGPIOManager)
: CDexedAdapter (CConfig::MaxNotes, pConfig->GetSampleRate ()),
#ifdef ARM_ALLOW_MULTI_CORE
CMultiCoreSupport (CMemorySystem::Get ()),
#endif
m_pConfig (pConfig),
m_UI (this, pGPIOManager, pConfig),
m_PCKeyboard (this),
m_SerialMIDI (this, pInterrupt, pConfig),
m_bUseSerial (false),
m_pSoundDevice (0),
m_GetChunkTimer ("GetChunk",
1000000U * pConfig->GetChunkSize ()/2 / pConfig->GetSampleRate ()),
m_bProfileEnabled (m_pConfig->GetProfileEnabled ())
@ -50,38 +40,10 @@ CMiniDexed::CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
m_pMIDIKeyboard[i] = new CMIDIKeyboard (this, pConfig, i);
assert (m_pMIDIKeyboard[i]);
}
// select the sound device
const char *pDeviceName = pConfig->GetSoundDevice ();
if (strcmp (pDeviceName, "i2s") == 0)
{
LOGNOTE ("I2S mode");
m_pSoundDevice = new CI2SSoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize (), false,
pI2CMaster, pConfig->GetDACI2CAddress ());
}
else if (strcmp (pDeviceName, "hdmi") == 0)
{
LOGNOTE ("HDMI mode");
m_pSoundDevice = new CHDMISoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize ());
}
else
{
LOGNOTE ("PWM mode");
m_pSoundDevice = new CPWMSoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize ());
}
};
bool CMiniDexed::Initialize (void)
{
assert (m_pConfig);
assert (m_pSoundDevice);
if (!m_UI.Initialize ())
{
return false;
@ -101,37 +63,11 @@ bool CMiniDexed::Initialize (void)
ProgramChange (0);
setTranspose (24);
// setup and start the sound device
if (!m_pSoundDevice->AllocateQueueFrames (m_pConfig->GetChunkSize ()/2))
{
LOGERR ("Cannot allocate sound queue");
return false;
}
m_pSoundDevice->SetWriteFormat (SoundFormatSigned16, 1); // 16-bit Mono
m_nQueueSizeFrames = m_pSoundDevice->GetQueueSizeFrames ();
m_pSoundDevice->Start ();
#ifdef ARM_ALLOW_MULTI_CORE
// start secondary cores
if (!CMultiCoreSupport::Initialize ())
{
return false;
}
#endif
return true;
}
void CMiniDexed::Process (bool bPlugAndPlayUpdated)
{
#ifndef ARM_ALLOW_MULTI_CORE
ProcessSound ();
#endif
for (unsigned i = 0; i < CConfig::MaxUSBMIDIDevices; i++)
{
assert (m_pMIDIKeyboard[i]);
@ -153,21 +89,6 @@ void CMiniDexed::Process (bool bPlugAndPlayUpdated)
}
}
#ifdef ARM_ALLOW_MULTI_CORE
void CMiniDexed::Run (unsigned nCore)
{
if (nCore == 1)
{
while (1)
{
ProcessSound ();
}
}
}
#endif
CSysExFileLoader *CMiniDexed::GetSysExFileLoader (void)
{
return &m_SysExFileLoader;
@ -199,30 +120,159 @@ void CMiniDexed::ProgramChange (unsigned nProgram)
m_UI.ProgramChanged (nProgram);
}
void CMiniDexed::ProcessSound (void)
//// PWM //////////////////////////////////////////////////////////////////////
CMiniDexedPWM::CMiniDexedPWM (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager)
: CMiniDexed (pConfig, pInterrupt, pGPIOManager),
CPWMSoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize ())
{
assert (m_pSoundDevice);
}
unsigned nFrames = m_nQueueSizeFrames - m_pSoundDevice->GetQueueFramesAvail ();
if (nFrames >= m_nQueueSizeFrames/2)
bool CMiniDexedPWM::Initialize (void)
{
if (!CMiniDexed::Initialize ())
{
return false;
}
return Start ();
}
unsigned CMiniDexedPWM::GetChunk (u32 *pBuffer, unsigned nChunkSize)
{
if (m_bProfileEnabled)
{
m_GetChunkTimer.Start ();
}
int16_t SampleBuffer[nFrames];
getSamples (nFrames, SampleBuffer);
unsigned nResult = nChunkSize;
int16_t SampleBuffer[nChunkSize/2];
getSamples (nChunkSize/2, SampleBuffer);
if ( m_pSoundDevice->Write (SampleBuffer, sizeof SampleBuffer)
!= (int) sizeof SampleBuffer)
for (unsigned i = 0; nChunkSize > 0; nChunkSize -= 2) // fill the whole buffer
{
LOGERR ("Sound data dropped");
s32 nSample = SampleBuffer[i++];
nSample += 32768;
nSample *= GetRangeMax()/2;
nSample /= 32768;
*pBuffer++ = nSample; // 2 stereo channels
*pBuffer++ = nSample;
}
if (m_bProfileEnabled)
{
m_GetChunkTimer.Stop ();
}
return nResult;
};
//// I2S //////////////////////////////////////////////////////////////////////
CMiniDexedI2S::CMiniDexedI2S (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager, CI2CMaster *pI2CMaster)
: CMiniDexed (pConfig, pInterrupt, pGPIOManager),
CI2SSoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize (), false, pI2CMaster,
pConfig->GetDACI2CAddress ())
{
}
bool CMiniDexedI2S::Initialize (void)
{
if (!CMiniDexed::Initialize ())
{
return false;
}
return Start ();
}
unsigned CMiniDexedI2S::GetChunk (u32 *pBuffer, unsigned nChunkSize)
{
if (m_bProfileEnabled)
{
m_GetChunkTimer.Start ();
}
unsigned nResult = nChunkSize;
int16_t SampleBuffer[nChunkSize/2];
getSamples (nChunkSize/2, SampleBuffer);
for (unsigned i = 0; nChunkSize > 0; nChunkSize -= 2) // fill the whole buffer
{
s32 nSample = SampleBuffer[i++];
nSample <<= 8;
*pBuffer++ = nSample; // 2 stereo channels
*pBuffer++ = nSample;
}
if (m_bProfileEnabled)
{
m_GetChunkTimer.Stop ();
}
return nResult;
};
//// HDMI /////////////////////////////////////////////////////////////////////
CMiniDexedHDMI::CMiniDexedHDMI (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager)
: CMiniDexed (pConfig, pInterrupt, pGPIOManager),
CHDMISoundBaseDevice (pInterrupt, pConfig->GetSampleRate (),
pConfig->GetChunkSize ())
{
}
bool CMiniDexedHDMI::Initialize (void)
{
if (!CMiniDexed::Initialize ())
{
return false;
}
return Start ();
}
unsigned CMiniDexedHDMI::GetChunk(u32 *pBuffer, unsigned nChunkSize)
{
if (m_bProfileEnabled)
{
m_GetChunkTimer.Start ();
}
unsigned nResult = nChunkSize;
int16_t SampleBuffer[nChunkSize/2];
getSamples (nChunkSize/2, SampleBuffer);
unsigned nFrame = 0;
for (unsigned i = 0; nChunkSize > 0; nChunkSize -= 2) // fill the whole buffer
{
s32 nSample = SampleBuffer[i++];
nSample <<= 8;
nSample = ConvertIEC958Sample (nSample, nFrame);
if (++nFrame == IEC958_FRAMES_PER_BLOCK)
{
nFrame = 0;
}
*pBuffer++ = nSample; // 2 stereo channels
*pBuffer++ = nSample;
}
if (m_bProfileEnabled)
{
m_GetChunkTimer.Stop();
}
return nResult;
};

61
src/minidexed.h
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@ -33,34 +33,25 @@
#include <circle/interrupt.h>
#include <circle/gpiomanager.h>
#include <circle/i2cmaster.h>
#include <circle/multicore.h>
#include <circle/soundbasedevice.h>
#include <circle/pwmsoundbasedevice.h>
#include <circle/i2ssoundbasedevice.h>
#include <circle/hdmisoundbasedevice.h>
class CMiniDexed : public CDexedAdapter
#ifdef ARM_ALLOW_MULTI_CORE
, public CMultiCoreSupport
#endif
{
public:
CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager, CI2CMaster *pI2CMaster);
CGPIOManager *pGPIOManager);
bool Initialize (void);
virtual bool Initialize (void);
void Process (bool bPlugAndPlayUpdated);
#ifdef ARM_ALLOW_MULTI_CORE
void Run (unsigned nCore);
#endif
CSysExFileLoader *GetSysExFileLoader (void);
void BankSelectLSB (unsigned nBankLSB);
void ProgramChange (unsigned nProgram);
private:
void ProcessSound (void);
private:
CConfig *m_pConfig;
@ -72,12 +63,48 @@ private:
CSerialMIDIDevice m_SerialMIDI;
bool m_bUseSerial;
CSoundBaseDevice *m_pSoundDevice;
unsigned m_nQueueSizeFrames;
protected:
CPerformanceTimer m_GetChunkTimer;
bool m_bProfileEnabled;
};
//// PWM //////////////////////////////////////////////////////////////////////
class CMiniDexedPWM : public CMiniDexed, public CPWMSoundBaseDevice
{
public:
CMiniDexedPWM (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager);
bool Initialize (void);
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize);
};
//// I2S //////////////////////////////////////////////////////////////////////
class CMiniDexedI2S : public CMiniDexed, public CI2SSoundBaseDevice
{
public:
CMiniDexedI2S (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager, CI2CMaster *pI2CMaster);
bool Initialize (void);
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize);
};
//// HDMI /////////////////////////////////////////////////////////////////////
class CMiniDexedHDMI : public CMiniDexed, public CHDMISoundBaseDevice
{
public:
CMiniDexedHDMI (CConfig *pConfig, CInterruptSystem *pInterrupt,
CGPIOManager *pGPIOManager);
bool Initialize (void);
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize);
};
#endif

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